Black Box LES424A manual 2 2-Port Hardened Serial Server LES422A, LES421A components

Chapter 2: Overview

Table 2-2. LES421A components.

Number in Figure
2-1 or 2-2	Component		Description
1	(1)	RJ-45 connector	Connects a standard Ethernet network drop using a straight-through RJ-45 male Ethernet cable.
2	(1)	5-position terminal block connector	Connects to an RS-422 or RS-485 serial device when the DB9 M (RS-232) connector is disabled.
3	(1)	DB9 male connector	Connects to an RS-232 serial device when the 5-position terminal block (RS-422/RS-485) is disabled.
4	(1)	2-wire terminal block connector	Removable 2-position terminal block with +, -, and chassis ground connections.
5	(1)	Serial Port LED	Flashes green when data is being transmitted or received on the serial port.
			Lights steady green when the serial port is open.
6	(1)	Ethernet Link LED	Lights when a connection is made.
			Flashes when there is data traffic on the Ethernet link.
			Lights green continuously when the unit is initializing.
7	(1)	Ready LED	Flashes once per second when the system is operating correctly.
			Off when something is wrong, for example, another device uses the same IP address.
8	(1)	Reset button	Used to initiate a hardware reset, enter console mode, or reload factory defaults.

2.4.2 2-Port Hardened Serial Server (LES422A)

Figures 2-3 and 2-4 show the front and top panels of the LES422A. Table 2-3 describes its components.

4		7	3
	6
4
1			7
2

2

Figures 2-3 and 2-4. LES422A front and top panels.

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